The 650 series double acting hydraulic cylinders are manufactured from 190 mm. stroke up to 230 mm., always in stock. This series of hydraulic levelling arms consists of a 35mm diameter stem. up to 45 mm. in quality Ck45 (F114) and a St52.3 lapped tube, diameter from 70x90 to 90x105 and with internal tolerance of h9. As mooring, it has a folded fork at the tip of the stem and a reinforced threaded ball joint at the back. It comes with a non-return valve incorporated in all its series.